Do custom views survive a workbook republish? Both routes wiped them for us

Hi All,  

Can some please assist us on the problem which we are facing  

We're moving 10+ dashboards to a new environment and the business has built a lot of custom views on them, so we need to know whether they can come across. 

I tested two routes, keeping workbook and sheet names identical in both: 

1. Published into a different project — custom views didn't carry over. 

2. Republished over the existing workbook in the same project from Desktop — 

   the custom views on it were wiped. 

Is that expected behaviour, or is there a publish setting that preserves them 

that I've missed? 

If it is expected, has anyone used the Download Custom View / Publish Custom View 

REST endpoints to move them across in practice? 

I'm a Site Administrator Creator on Tableau. 

Thanks!